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2014 Sierra Will not turn over.

RichMO

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RichMO New Member

RichMO

Posted
Posted

Probably not a new topic but please excuse me I'm new here...

Truck has 50K on it and with no problems until today. Started fine this morning and drove to my son's house about 24 miles. When I left there it started up fine but I noticed that lights were coming on all over. Lights like "Service 4wd, Traction Control, Power Steering Drive with Caution" and the engine light came on. I drove it back home with it running about 2.5K rpm at 60 mph (should be about 1.5K rmp),but pulled into a service station and turned off the motor. Started back up ok but lights came on all over again but this time when I back up (out of the parking spot)and put in in "D" , I was surprised by a clunk and a jolt by the transmission?? Got it into the subdivision where I live and after stopping at a stop sign (up hill grade) I was lucky to make it away and into the driveway. Had the gas all the way down but the engine did not race ..... just NO power. Now the engine will not start or even try to turn over. Key in and turned it as if there was a short as the light on the dash go almost out (they come back on when I release the key).... Any help would be appreciated as I will be calling AAA for it to be towed into the dealer......

Gary13 Enthusiast

Gary13

Posted
Posted

Start with a battery check / replacement it needed. From what you're saying its a power issue. Remember, the ECM and TCM need a minimum of 14 volts to properly operate. Start there, then check the alternator output.

Eddie 70 Senior Enthusiast

Eddie 70

Posted
Posted

That sounds like a bad battery. Get that checked at Autozone if it will start again. They can tell you if it's good. What was the voltmeter on the dash showing with the truck off? With the truck running? That will probably help you find your answer.

LaserBlueZ71 Enthusiast

LaserBlueZ71

Posted
Posted

Definitely sounds like a lack of voltage to the components. Remember, in modern vehicles, electricity is equivalent to the blood that flows through our veins. Without sufficient power these vehicles will go completely haywire and do all sorts of funky crap.

CMAdams1983 Enthusiast

CMAdams1983

Posted
Posted

my truck has had similar issues and my local dealer had me lock and unlock the drivers door manually three times. They said something was triggering the theft system and that was how you reset it. Your's might be something different but the couple times my truck didn't start thats all i have done and it's worked. good luck

thewhitestallion Senior Enthusiast

thewhitestallion

Posted
Posted

If I was a betting man I would bet that your battery is bad and caused all those weird issues with your truck. If you are still under warranty then take it / tow it to a dealer and let them replace it under warranty as these batteries should last at least 3 years or 36k miles. If not then you need to test your battery and make sure that it is the culprit.

Doobs41378 Enthusiast

Doobs41378

Posted
Posted

If I was a betting man I would bet that your battery is bad and caused all those weird issues with your truck. If you are still under warranty then take it / tow it to a dealer and let them replace it under warranty as these batteries should last at least 3 years or 36k miles. If not then you need to test your battery and make sure that it is the culprit.

I think he is out of warranty at 50k...

RichMO New Member

RichMO

Posted
  • Author
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Had the truck towed to the dealer today and when we took it off the truck it started up but all kinds of light came back on..... Service 4wd, Trailer Brake, Power Steering Drive with Care and Traction Control light. Went outside with the service writer and would not start but all the bad lights were still there. Note that the indication that shows it is suppoesed to be in "Park" was not illuminated. Pulled the shiffer up and down serveral times and no response. Dealer told me he will not be able to get to it till Friday AM... Could the tranny sensor or cable cause all these issues? or is it the onboard computer? Now I'm wondering if GM will even cover any this as part of a warrant issue with 50K plus on it?? (Doubt it).

RichMO New Member

RichMO

Posted
  • Author
Posted

Just got a call from the dealer and thought I would share it..... The problem was the transmission control module. Seems this has a bunch of electrical attachments including the truck not starting. Dealer reported this is a 1200 bill but because its with the transmission it will be covered under warrenty.... Did I luck out!!!

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